A Takaya's whale, or Orcinus orca takayai, was a cetacean mammal, a type of orca, native to the oceans of planet Earth. In the late 24th century, two Takaya's whales were part of the crew of Federation Galaxy-class starships. They were guidance and navigation specialists, and supervised a consultation crew of twelve Atlantic and Pacific bottlenose dolphins in cetacean ops and the cetacean navigation labs. (TNG references: Star Trek: The Next Generation Technical Manual, Star Trek: The Next Generation USS Enterprise NCC-1701-D Blueprints)